#pragma once
#include<iostream>

using namespace std;

double Division(int a, int b)
{
	if (b == 0)
	{
		throw "Division by zero condition!";
	}
	else
		return double(a) / (double)b;
}
void Func()
{
	int len, time;
	cin >> len >> time;
	cout << Division(len, time) << endl;
}
int main()
{
	try
	{
		Func();
	}
	catch (const char* errmsg)
	{
		cout << errmsg << endl;
	}
	catch (...)
	{
		cout << "umKown excption" << endl;
	}
	return 0;
}